This European Standard for a single series of flanges specifies requirements for circular steel flanges in PN designations PN 2,5 to PN 400 and nominal sizes from DN 10 to DN 4000.This European Standard specifies the flange types and their facings, dimens
DS/EN 1092-1+A1:2013 history
2013DS/EN 1092-1+A1:2013 Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories, PN designated - Part 1: Steel flanges